Open-end fund, as its name implies: the share of the fund will increase or decrease with the purchase or redemption of investors, and it will be traded according to the net value of the unit. There are stock type, bond type, currency type and mixed type. Among them, stock index funds are suitable for fixed investment, long-term holding, or band. Stock-based capital preservation funds are often favored by investors in a bear market; Money fund, also known as "savings fund", is a good cash management tool.

Ordinary people can trade through securities companies (some funds), bank counters and online banking.

Closed-end fund, that is, the share (scale) of the fund remains unchanged during its existence. Trading places are limited to securities companies. Due to historical reasons, the discount rate of base seal has attracted wide attention of investors, and also highlighted the investment value of base seal. After the end of the duration, from the current situation, they have all become open-end funds, so they will become less and less until they all disappear.